One problem related to ignition switch has been reported for the 2012 GMC Sierra 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Sierra 2500 based on all problems reported for the 2012 Sierra 2500.
Tl-the contact owns a 2012 GMC Sierra 2500. The contact stated that the vehicle stalled when turning the key in the ignition switch. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 67,000. Djr.
| Ignition Switch problems | |
| Electrical System problems |